Ventilating window-section and screen



R. MILLER AND W. E. TURNEY. VENTILATING 'wmoow SECTION AND SCREEN.

APPLICATION FILED APR. 10, I919.

1,344,054. I Patented June 22, 1920.

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IN VEN'IOR WE 720 2263 BY W/ Arrolumx' UNITED STATES PATENT orFlcE;

RALPH MILLER AND WILLIAM E.- TURNEY, OF SAN FRANCISCO, CALIFORNIA.

VENTILATING W INDOW-SE CTiON AND SCREEN.

Specification of Letters Patent.

' Patented June 22, 1920.

Application; filed' April 10, 1919. Serial No. 289,132.

To all whom it may concern.

Be it known that We, RALPH MiLnnn and VVILLIAM E. TURNEY, citizens of the United States, and residents of San Francisco,in

The object of the present invention is to provide a device which-can be inserted be-- tween a window sill and its lower sash, when the latter is raised, which will permit of ventilation of the room containing the window, while preventing drafts which might becaused' by so opening the window, will effectually preventthe passage of flies or other insects through into the room, will not substantially diminish the light through the window, and which can be adjusted to windows of different sizes.

In the accompanying drawing, Figure 1 is a transverse vertical section of a window equipped with our improvement F ig. 2 is a plan view of the device; and F 1g. 3 is an inside view thereof.

Referring to the drawing, 1 indicates a window sill and 2 the lower sash of the window, slidable in vertical grooves 23in the window frame. Our improved ventilating screen is in two parts, 4, 4 telescoping one into the other. Each part comprises a triangular end frame 6, a window frame 5 having a sheet 7 of glass therein, and a screen frame 8 having a screen 9 therein. The end frame 6 is in the form of a right angled triangle, the window frame 5 being secured along its upwardly extending edge to the inner side of said triangular frame adjacent to its edge 11 which forms the hypotenuse of said triangle. The screen frame 8 extends horizontally, and its lower side, adjacent to its inner longer edge 12, is secured to the upper and longer edge of said window frame, and, adjacent to its shorter edge, 1s secured to the upper edge of the triangular end frame. The screen and window frames extend from the end frames 6 of the two portions of the screenin opposite directions, and slide one within the other, and in the upper and lower horizontally extending rails 13, 14, of the inner window frame 7 areunder-cut grooves 15 in which are recelved under-cut ribs 16, extending from the upper and lower horizontally extending rails 17, 18, of the outer window frame 7.

In order to exclude insects from the room, to the free end of ach window frame and of each screen frame, there is secured a rubber strip 19 extending only between the longitudinal rails of said frame, which strip 19 extends from said free end toward the opposite window or screen frame, as the case may be, the free edge ofsaid strip moving in contact with the window or screen,

as the case may be, when the two sections of the device are moved longitudinally relative to each other to adjust the width of said ventilating screen for different widths of windows. On the outer side of each triangular end frame, adjacent to the vertical edge thereof, is secured a strip 21 sufficiently wide, thick, and strong to support the weight of the window sash if said weight has not been balanced by a sash weight, as is frequently the case. This strip is of the same width as the lower sash frame 2, and, like said frame, can be received in the groove 3 of the window frame between the inner stop 2% and the parting head 26.

he provision of this strip permits of the triangular end frame being made of material of thickness only suihcient to withstand winds and to hold the parts together, since it does not have to sustain the weight of the window sash.

In the top rail of the outer window frame is screwed a screw 27 carrying a knob 28 by which the whole device can be transported, and in the end rails 29 of the window frames, adjacent to the end frames, are screwed screws 31 carrying knobs 32 by which the two parts of the device can be moved to and from each other to vary the width of the device as desired.

The rail 33, remote from the window frame, of the screen frame of outer section 1 of our device is tapered in thickness, and the rail 34 of the screen frame of the inner section 4;? which slides in contact with the rail 33 is formed with a shoulder 36 against which the outer edge of the rail 33 abuts, said rail 34 sloping from said shoulder toward its free edge'with the same inclination as the rail 33, to form a crmtinuous inclined surface upon which. the lower rail of the lower sash 2 can rest in contact through substantially its entire width.

Upon said sloping surfaces of the rails 33, 3 1, are secured strips 37 of felt making an air-tight juncture between said surfaces and the lower sash rail.

It will thus be seen that we have provided a device which affords excellent ventilation without danger of drafts resulting therefrom, which perfectly excludes flies or other insects from the room, which can be readily adjusted to fit a window of any width within reasonable limits, and which does not materially diminish the light furnished by the window. The device may thus be considered as a section of the window as well as a screen.

Furthermore, the device admits fresh air into the room and at the same time prevents its entrance with such violence as to produce discomfort or disturbance of any papers or other light material adjacent to the window; it can be readily taken apart for clean ins; the sheets of therein; and although of comparatively light weight, it is sufficiently strong to support a sash which is not cmmterbalanccd by a sash weight.

We claim In a ventilating screen and window section, the combination of triangular end frames, window and screen frames connected to the sides, extending into the room, respectively of each end frame and extending in planes at right angles to said end frame, glass and wire screens contained in the respective frames longitudinally extending sides of one of said frames so connected having under-cut grooves, and longitudinalsides of the other frame so connected, having under-cut ribs slidable in said grooves, fiexible'strips secured to the free ends of the frames so connected and extending into contact with the glass and wire screen respectively of the opposite frame so con-.

nected, the rail of the screen frame of the outer section, remote from the window frame thereof, having an upper-surface sloping downward to its outer edge and the rail of the screen frame of the inner sect-ion, slidable in contact therewith, having a longitudinally extending shoulder against which said first-named rail can abut and sloping downward from said shoulder to its free edge.

RALPH MILLER. WM, E. TURNEY. 

